Method of veining or marbling artificial stone.



UNITED STATES PATENT ()FFICE.

HEINRICH ERNST GUSTAV UHLIG, OF HAMBURG, GERMANY, ASSIGNOR TO THEMARMORIT GESELLSOHAFT, GESELLSCHAFT MIT BESOHRANKTER I-IAFTUNG, OF SAMEPLACE.

METHOD OF VEININ G OR MARBLING ARTlFlC-IAL STONE.

SPECIFICATION forming part of Letters Patent No. 664,194, dated December18, 1900.

Application filed May 13 1898. Serial N- 680|627- (N0 specimens.)

To all whom it may concern.-

Be it known that I, HEINRICH ERNST Gus- TAV UHLIG, a subject of theGerman Emperor, residing at Hamburg, in the German Empire, have inventeda certain new and useful Method of Veining or Marbling Artificial Stone,of which the following is a specification.

My invention relates to a method of producing veins and spots forimitating marble or other stones while molding stone-like compositions;and it consists in applying a uniform layer or film of color to a smoothsurface, such as a plate of glass, upon which I 5 layer while stillmoist the more or less viscid or pulpy artificial-stone mass is forciblyspattered by suitable meansas, for instance, with the aid of a brush.Thus the color is imbibed by the irregularly-distributed pulpystone masspartly in the shape of fine veins and partly as spots, and,notwithstanding a uniform layer of color was spread over the glassplate, yet it will be quite irregularly distributed in theartificial-stone mass in the form of veins and spots, just as in naturalmarble, owing to the sprinkling of the thicklyliquid artificial-stonemass. By this method the imitation will be effected more naturally andquickly than by applying the color to the soft-stone mass by means of adrawing-pen, o brush, or the like, inasmuch as the formation of theveins and spots is entirely left at large. As soon as the layer or filmof color is covered with the pulpy-stone mass by the sprinkling and thecolor has entered into the mass pulpy-stone mass or mortar is poured onthe veined layer until the desired thickness of artificial stone isobtained, which is then dried and hardened in the usual manner.

Of course when sprinkling or pouring the pulpy-stone mass upon the glassplate a molding-frame may be employed, which is to be re moved as soonas the stone mass begins to set.

Having fully described my invention, what I claim, and desire to secureby Letters Patent, is

The process, which consists in applying a surface coat ofcoloring-matter to a smooth or polished surface, forcibly spatteringonto the coated surface a more or less fluid arti- 5o ficial-stonecompound, and building up the block or slab by addition ofartificial-stone compound or mortar, substantially as set forth.

- HEINRICH ERNST GUSTAV UHLIG. Witnesses:

REINHARD OSTERMEYER, E. H". L. MUMMENHOFF.

